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EF/ ICR Logo Levels of Treated Water Total Trihalomethanes for OHIO
JANUARY - MARCH 1998


REMINDER: Data Purpose: The ICR data were collected as part of a national research project to support development of national drinking water standards. They should NOT be used to determine local water systems compliance with drinking water standards, nor should they be used to make personal judgements about individual health risks.

Units: Sample measurements are taken in micrograms per Liter (ug/L) and are regulated in milligrams per Liter (mg/L). A microgram per Liter is equivalent to one contaminant part per billion (ppb). A ppb can be thought of as one grain of salt in a swimming pool. Data for Total Trihalomethanes, haloacetic acids 5, and bromate are presented in ppb. 1 mg/L = 1000 ug/L, or 0.080 mg/L = 80 ug/L = 80 ppb, which happens to be the TTHM standard in the Stage 1 DBP Rule.

Calculation in Regulations is Different: Comparisons with compliance calculations based on the existing Total Trihalomethanes standard in CFR Part 141.30 may not be warranted since the standard i s based on an annual average of public water system quarterly averages and not on treatment plant results as shown here. Also the results here are based on different types of samples.

Results of Zero: A result of zero may indicate that a sample was analyzed, but that the result was less than the lowest value that the analytical method can reliably report.




Akron Public Utilities Bureau

Water Type - SURFACE WATER
(Treated W ater)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Akron Water Supply Plant 538 Surface Water JAN 1998 - MAR 1998 15.5



Avon Lake Water Department

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Tri halomethanes Concentration (ppb)
Avon Lake Water Filtration Plant 703 Surface Water JAN 1998 - MAR 1998 15.9



CITY OF TOLEDO DEPARTMENT OF PUBLIC UTIL

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
COLLINS PARK FILTERATION PLANT 534 Surface Water JAN 1998 - MAR 1998 29.2



Canton Water Department

Water Type - GROUND WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Sugarcreek Treatment Plant 708 Ground Water JAN 1998 - MAR 1998 11.8



Cincinnati Water Works

NO DATA - Click here to find out why.



City of Columbus, Dept. Public Utilities

NO DATA - Click here to find out why.



City of Dayton, Dept of Water

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Miami Water Treatment Plant 535 Surface Water JAN 1998 - MAR 1998 23.1
Ottawa Street Water Treatment Plant 536 Surface Water JAN 1998 - MAR 1998 19.4



Cleveland Division of Water

Water Type - SURFACE WATER
(Treated Water)

Plant Name Plant ID Water Type Quarter Total Trihalomethanes Concentration (ppb)
Baldwin Water Works 523 Surface Water JAN 1998 - MAR 1998 20.2
Crown Water Plant 526 Surface Water JAN 1998 - MAR 1998 17.4
Garrett A. Morgan WTP 524 Surface Water JAN 1998 - MAR 1998 14.7
Nottingham Water plant 525 Surface Water JAN 1998 - MAR 1998 13.8



Mahoning Valley Sanitary District

NO DATA - Click here to find out why.



Results for mixed water (ground water and surface water) and purchased water can be found under water system summary reports.


How does this state's treated water compare to treated waters nationally for Total Trihalomethanes?
View national data for the same month.


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